baber/WOPTO huggingface dataset:
Patent GB-993822-A (GB)
Title: Manufacture of semiconductive bodies
IPC: H01L27/146
Filed: 1963-11-22
Abstract: 993,822. Lasers. INTERNATIONAL BUSINESS MACHINES CORPORATION. Nov. 22, 1963 [Dec. 31, 1962], No. 46114/63. Heading H3B. [Also in Division H1] A semi - conductor crystal suitable for a laser has a portion with planar side faces projecting from one large area face, the area at the level of the face being less than that of the tip of the portion and one side face being parallel with a particular crystallographic plane. Fig. 1 shows a semi-conductor device such as an injection laser comprising a gallium arsenide body 10 with a protruding portion 12 containing PN junction 14. The device ia manufactured by diffusing zinc into an N-type gallium arsenide wafer to form a PN junction, cutting grooves as shown in Fig. 4b, masking with an etch resist which is removed to expose the corner regions which are etched to provide undercut regions 20, 22, as shown in Fig. 4e, and then slicing the wafer down the plane of minimum bond strength by a cleavage member such as blade 48, to expose optically flat, accurately positioned, planar edges to the portions which project from the main body. Fig. 2 shows a structure incorporating a plurality of such elements each being associated with an electrode and its own current source so that each may act as a laser. Light emitted from the PN junction of element 68 is directed precisely to the emission stimulation region of element 66 so that this element may be stimulated either electrically or optically. Other optical paths are possible between the various elements so that multiple input and logical switching operations may be performed. Optical properties may be improved by coatings or immersion in appropriate liquid or solid media. Different materials may be used to provide different optical wavelengths. The invention may be used for other types of junction semiconductor devices and indium phosphide, indium antimonide, germanium and silicon may be used as the semi-conductor. Cleavage of the crystal may be effected by sand blasting or ultrasonic techniques.
Patent GB-1185118-A (GB)
Title: Method for Reducing Foamability of Aqueous Solutions
Inventor: SISCO WILLIE JAMES
IPC: C25B15/00
Filed: 1968-09-30
Abstract: 1,185,118. Reducing foaming in aqueous solutions. DOW CHEMICAL CO. 30 Sept., 1968, No. 46242/68. Heading C1C. The foaming tendency of aqueous solutions, such as brine, electrolytic cell feed solutions and solutions containing tannin as surfactant impurity, is reduced by contacting the solution at a pH of 5 or less, adjusted by addition of acid if necessary, with a dispersed gas which is chlorine or a gaseous mixture containing chlorine to generate a foam and separating said foam from the aqueous solution. The gaseous mixture may contain hydrogen, air or nitrogen as well as chlorine.
Patent GB-987662-A (GB)
Title: Ball thrust bearings
IPC: F16C33/66
Filed: 1963-11-25
Abstract: 987,662. Bearings; controlling clutches. TEXTRON Inc. Nov. 25, 1963 [Dec. 3, 1962], No. 46473/63. Headings F2A and F2L. A clutch release ball bearing comprises thrust rings 32, 34 with balls 40 therebetween; and inner and outer retaining members 46, 48, each of which extend between the rings 32, 34. The thrust rings 32, 34 and the retaining members 46, 48 together define an enclosed annular space which, minus the volume occupied by the balls 40 and a spacer 44, provides a grease-space 50. The outer retaining member 48 is located near to the balls 40 so as to minimize the volume of grease-space which lies radially outside an annular path 72 of the balls. The grease-space 50 is not completely filled with grease so as to allow for expansion of the grease and the grease is prevented from escaping by means of labyrinth seals formed between the thrust rings and their retaining members. The spacer 44 comprises a ring 80 with radial spacing portions 82. The thickness of the portions 82, measured axially, is about one fifth of the diameter of a ball 40 and the elements 82 extend radially to a position which is twothirds the radius of a ball from the path 72. In a modification as shown in Fig. 5, the spacer 44a has radial portions 82a which are turned axially in alternate directions to form for each ball a curved lip 90.
Patent GB-1363202-A (GB)
Title: Refuse compacting system
IPC: B30B9/30
Filed: 1972-10-10
Abstract: 1363202 Compacting refuse B SUNDBERG and H JONASON 10 Oct 1972 [13 Oct 1971] 46591/72 Heading B8C A refuse compacting system comprises a container 1 for compacted refuse and a compacting device 2 separate from and being arranged adjacent the container 1 and placed on a common support 3, the container including a movable pressure plate 10 movable to a refusecompacting position by means of the compacting device and movable to a rest position by means of a returning device 8, 9, 12 mounted on the container, a refuse loading hatch 4 being located so as to open into the container in front of the pressure plate when the latter is in its rest position. As shown, refuse is fed into the container 1 through the hatch 4 where it is compacted by the plate 10 which is actuated by a piston rod 20 of the compacting device 2. Disinfectant may be passed through the piston-rod and plate into the container. The plate 10 is biased to a rest position ahead of the hatch 4 by a spring-loaded wire or rope system 8, 9. When full the container is loaded on to a lorry, Fig. 5 (not shown) on which it is retained by catches (5) which co-operate with catches (6<SP>1</SP>) on the lorry.
Patent GB-1349293-A (GB)
Title: Elastic crimp yarn
IPC: D02G1/02
Filed: 1971-10-07
Abstract: 1349293 Crimped elastic yarns BAYER AG 7 Oct 1971 [8 Oct 1970 12 Nov 1970] 46717/71 Heading D1F A process for the production of an elastic crimped yarn by a combined drawing-falsetwisting method, is characterised in that setting is carried out at filament speeds in excess of 300 metres per minute, directly after the false twist has been produced, at a constant filament tension by contact between the filament and a contact heating zone which has a length of not more than 400mm and is at a temperature of from 150‹ to 210‹C. A filament 2 is taken from a spinning bobbin 1 and fed to a contact heater 7 via a feed unit 3; from the heater 7, the filament passes through an internal friction false-twister 5 to be drawn on drafting roller 4. The spacing between the twisting unit 5 and the contact heater 7 is between 150 and 30 mm. The contact heater 7 is provided with a roughened contact surface and has a length not more than 400 mm. The depth of roughing of the contact surface is from 5-30mÁ.
Patent GB-1321678-A (GB)
Title: Electrophotographic materials
IPC: G03G5/06
Filed: 1970-10-01
Abstract: 1321678 Photoconductive composition EASTMAN KODAK CO 1 Oct 1970 [3 Oct 1969] 46821/70 Heading H1K A photoconductive coating composition comprises a photoconductor sensitized with a methine dye comprising a dinitrobenzene nucleus joined by a methine or polymethine linkage to a nitrogen containing heterocyolic nucleus having 5 to 6 atoms in the heterocyclic ring. In the specific embodiments a polyethylene terephthalate film having thereon an organic conducting layer is coated with a photoconductive composition comprising 4,4<SP>1</SP>-benzylidene bis- (N,N-diethyl-m-toluidine) triphenvlamine or bis- (4-diethylamino) tetraphenylmethane as the photoconductor; poly(vinyl-m-bromobenzoateco-vinyl acetate or poly-(4,41-isopropylidene-bisphenylene oxethylene-co-ethylene terephthalate as binder and a sensitizing dye wherein the heterocyclic nucleus is thiazoloquinoline, imidazoquinoxaline, or pyrrolopyridine. Many other supports, photoconductors, binders and sensitizers are specified.
Patent GB-1443483-A (GB)
Title: Monocrystalline silicates and method of growth
IPC: C01B33/26
Filed: 1974-10-30
Abstract: 1443483 Simple and mixed silicates ROCKWELL INTERNATIONAL CORP 30 Oct 1974 [19 Dec 1973] 46986/74 Heading C1A A single crystal of a silicate selected from the system comprising SiO 2  and one or more of CaO, MgO and Al 2 O 3  is prepared by inserting a seed crystal into a melt containing Al 2 O 3 , CaO, MgO and SiO 2  in proportions corresponding to those in which they are present in the silicate, and pulling the seed crystal from the melt at predetermined withdrawal and rotational rates. The production of single crystals of mullite (Al 6 Si 2 O 13 ), akermanite (Ca 2 MgSi 2 O 7 ) and gehlerite (Ca 2 Al 2 SiO 7 ) is particularly described. A film of single crystal material, preferably silicon, may be deposited on the single crystal silicate so prepared so as to produce semi-conductor devices.
Patent GB-1132567-A (GB)
Title: Scraper chain conveyors
IPC: B65G19/28
Filed: 1967-10-17
Abstract: 1,132,567. Endless conveyers. GEWERKSCHAFT EISENHUTTE WESTFALIA. 17 Oct., 1967 [23 Dec., 1966], No. 47185/67. Heading B8A. A conveyer trough is formed by welding two similar E-cross section members 1, 7 together at 8 and 9. Keyhole slots 14 are provided for attachment bolts. The heads of the latter are held from turning by plates 17. Apertures may be formed in the backs 11 of the member 7 to enable a welded joint to be made between the members 1, 7 at 10. The flanges 12, 12<SP>1</SP>, of the members 1, 7, may be level as shown, or may be stepped.
Patent GB-962963-A (GB)
Title: Data recording for automatic read out
IPC: G06V30/224
Filed: 1962-12-14
Abstract: 962, 963. Automatic character reading; sensing statistical records. STANDARD TELEPHONES & CABLES Ltd. Dec. 14, 1962 [Dec. 19, 1961], No. 47230/62. Headings G4M and G4R. In a magnetic data representation having both legible characters and code marks in the form of spaced vertical bars adapted to be read by a machine having magnetic sensing head with a vertical slit, the legible character is formed by lines which are aligned with or placed at an angle to the code bars so that they do not interfere with the code pulses derived from scanning the code bars. In the form of Fig. 1 the vertical code bars are placed above the character and the beginning of the reading cycle is given by a long start mark. The characters are all formed by lines at an angle or normal to the vertical. The start mark produces positive and negative large amplitude pulses which are easily distinguished from the smaller pulses derived from the code marks. The character lines produce only a slight ripple. In the form of Fig. 3 small parts of the characters are vertical but aligned with certain code bars to as to reinforce the signal produced.
Patent GB-1083196-A (GB)
Title: Improvements in and relating to new basic disazo dyestuffs
Inventor: ALICOT MARIE-JOSEPHE JEANNE
IPC: C09B31/143
Filed: 1964-11-20
Abstract: Basic dis-azo-indazole dyes of formula <FORM:1083196/C4-C5/1> are prepared, in which R is a radical of formula <FORM:1083196/C4-C5/2> or of formula <FORM:1083196/C4-C5/3> and X is an anion, and in which the benzene rings A may be substituted by a chlorine atom, or a methyl, alkoxy or nitro group, the benzene rings B being possibly substituted by alkyl or alkoxy groups.  The dyes are water-soluble and the alkyl groups attached to the indazole nucleus have up to 4 carbon atoms and are preferably methyl or ethyl.  The dyes are prepared by normal coupling procedures or by alkylation of a dye of formula <FORM:1083196/C4-C5/4> The monoazo dyes corresponding to the respective values of R are also prepared before coupling to the indazole residue and mono-azo dyes of formulae <FORM:1083196/C4-C5/5> <FORM:1083196/C4-C5/6> are used as intermediates.  Bright orange bordeaux shades are obtained in acrylonitrile fibres.ALSO:In Example 1 fibres of acrylonitrile polymer are dyed to an orange-brown shade, with a disazo indazole prepared in the p  Example.  The novel dyes of the invention have general formula:-  <FORM:1083196/D1-D2/1> in which R is a hydroxy benzene - azo benzene radical of formula:- <FORM:1083196/D1-D2/2> or a benzene-azo benzene radical of formula:- <FORM:1083196/D1-D2/3> each alkyl group in the N1 and N2 positions of the indazole nucleous having up to 4 carbon atoms and X is a monovalent anion.
Patent GB-472828-A (GB)
Abstract: 472,828. Preventing fires; shoestiffeners. BRITISH UNITED SHOE MACHINERY CO.. Ltd., and MACDONALD, D. B. March 30,1936,No. 9305. [Class 47 (ii)] [Also in Group VII] Fire risk in connection with volatile, inflammable, liquids used in shoe manufacture or repair is reduced by incorporating in the liquid a dissolved gas which is a non-supporter of combustion, such as carbon dioxide. Particular reference is made to solvents such as acetone, methyl or ethyl alcohol, or benzol, and to the use of such solvents for softening shoe-part stiffeners which have been impregnated with a cellulose derivative. The liquid may be agitated in a container with successive charges of gas released from compressed gas bulbs, to effect solution. Specifications 210,168, [Class 17 (ii)], 381,245, and 421,736, [both in Group VII], are referred to.
Patent GB-1134105-A (GB)
Title: Improvements in or relating to vehicle driving means
Inventor: GOULDEN OSMUND ANTHONY
IPC: B60B35/10
Filed: 1964-11-20
Abstract: 1,134,105. Vehicle wheels; adjusting suspension height. ELLIPTICAL DRIVES Ltd. 16 Nov., 1965 [20 Nov., 1964; 25 Jan., 1965; 10 Sept., 1965; 13 Oct., 1965], Nos. 47429/64, 46011/65, 38657/65 and 43513/65. Headings B7C and B7D. For improved driving adhesion over soft ground, a vehicle wheel is connected to a driving shaft via means for transferring the axis about which the wheel is driven from a position coincident with the wheel central axis to one eccentrically displaced thereto, the driven axis being locked in the required disposition. In one embodiment (Figs. 1-3, not shown) a circular plate rigidly attached to the driving shaft is rotatably disposed within a circular aperture in the wheel disc. In a modification (Fig. 4) the plate 29 is disposed between the wheel disc 32 and a flange 35, and is driven by a gear 23a secured to a hollow shaft 27. A spring- urged plunger 36 is retractible by fluid pressure for selective engagement in a central or eccentric hole 33 or 30. In a second embodiment (Figs. 6, 7, not shown) a plate (12) rigidly connected to a driving shaft is pivotable on the wheel disc. In a modification (not shown), the shaft is mounted in a block slidable in a diametric groove in the wheel disc. In a third embodiment (Fig. 8, not shown), a drive shaft (41) and a wheel carrying shaft (48) are interconnected by gearing (42), (43), (47) enclosed by a casing (45). The easing may be locked to the vehicle body in any one of a number of positions, and the drive shaft rotated to rotate the wheel about its axis. The casing may be freed from the vehicle body, the gearing locked together, and the drive shaft rotated so that the wheel is rotated about the drive shaft. The vehicle may be jacked by locking the casing to the body to give a maximum ground clearance, placing blocks under the axle casing and then rotating the casing to lift the wheel off the ground.
Patent GB-1001626-A (GB)
Title: Improvements in rack and pinion steering gear for vehicles
Inventor: PARKER ROBERT WILLIAM
IPC: F16H19/00
Filed: 1962-12-17
Abstract: 1,001,626. Rack-and-pinion gearing. ENGINEERING PRODUCTIONS (CLEVEDON) Ltd. Dec. 3, 1963 [Dec. 17, 1962], No. 47520/62. Heading F2Q. In a rack and pinion steering gear for a vehicle, the rack 1 is slidably seated in a bearing opening 9 formed transversely through a plunger 8 which is supported both behind and in front of the rack by the rack and pinion gear casing 3. As shown, Figs. 1, 2 and 5, the plunger 8, which may be metallic, non-metallic, or non-metallic with a metal core, is cylindrical and its ends are axially slidable in coaxial bores in rear and front casing extensions 6 and 7 respectively. The pinion 4 passes through a clearance bore 10 in the plunger 8 transverse to, and communicating with, the bearing opening 9, a spring-loaded auxiliary plunger 11 acting on the plunger 8 to urge the rack teeth 2 into mesh with the pinion 4. An adjustable stop 12 with a lock-nut 13 prevents excessive backward movement of the auxiliary plunger 11, and the open bore in the casing extension 7 may have a removable cap 16. The surface of the rack bar bearing in the plunger 8 may be of plain circular section or may have chamfered portions or a keyway 14 (Fig. 5), the bearing surface of the plunger being of complementary cross-section. The chamfers or key and keyway prevent rotation of the rack about its axis. In an alternative form, Fig. 6, the pinion 4 is adjacent the plunger 8, allowing a greater supporting area of the end 8d of the plunger in the front casing extension 7a.
Patent GB-1022691-A (GB)
Title: Luggage case
Inventor: SLAN JACK
IPC: A45C5/03
Filed: 1962-12-17
Abstract: 1,022,691. Suitcases. DOMINION LUGGAGE CO. Ltd. Dec. 17, 1962, No. 47555/62. Heading A4G. A luggage case has opposed sections hinged together, each section comprising a moulded shell 4 secured to a plywood frame 5 or 6 the confronting edges of the frames 5, 6 being provided with a tongue 9 and channel 10 respectively which interfit to form closure means. The tongue 9 has a plywood core 11 and compressible coverings 20.
Patent GB-1271199-A (GB)
Title: Improvements in or relating to hydraulic vehicle drive transmission systems
Inventor: FORSTER FRANZ
IPC: F16H48/30
Filed: 1970-10-08
Abstract: 1,271,199. Vehicle transmissions. LINDE A.G. 8 Oct., 1970 [10 Oct., 1969], No. 47854/70. Heading B7H. The wheels 19 of a vehicle are driven by the main drive-shaft 1 via an hydraulic transmission including an hydraulic gear, comprising a pump 6 and motor 9, each of variable displacement, and a gear train consisting of spurgears 12 and 13, differential gear 14 and further spur-gears 17 and 18. The pump drive-shaft 5 is driven via gears 3, 5 and the driven motor shaft 11 drives, via spur-gears 12 and 13, the differential gear cage 14 which in turn drives the hubs via spur gears 17, 18. Locking brakes 20 are provided on the shaft 15. An auxiliary or feed pump 22, driven from the main shaft via gears 3, 23, may be provided.
Patent GB-1138486-A (GB)
Title: Production of resins
Inventor: WORRALL ROY
IPC: C08F8/14
Filed: 1966-10-26
Abstract: 1,138,486. Resins. MONSANTO CHEMICALS Ltd. 7 Sept., 1967 [26 Oct., 1966], No. 48104/66. Heading C3P. Resins containing acid or salt groups are prepared by a process in which a resin starting containing alcoholic groups is reacted in the solid state with an anhydride of an acid containing at least 2 carboxyl groups. The resin may be a polymer or copolymer of vinyl, allyl or crotyl alcohol, 2-cyclohexene-1-ol or p-vinylbenzyl alcohol; particularly hydrolysed copolymers of vinyl alcohol with ethylene, propylene, butenes, pentene-1, hexene-1, 2,2,4-trimethylpentene-1, cyclopentene, butadiene, isoprene, 1,5-hexadiene or styrene; or a polyether or polyester derived from a triol, e.g. glycerol. The anhydride may be succinic, glutaric, adipic, phthalic, naphthalic, maleic, citraconic, itaconic, glutaconic, aconitic and benzene-1,2,4-tricarboxylic acid anhydride. The resin starting material may be in particulate form or in the form of a shaped article. The products may be converted to salt, amide or ester derivatives, and may be crosslinked with metal ions, polyhydric alcohols or polyamines, or - by heating where the product contains both hydroxyl and carboxyl groups. Examples describe the reaction of partially and completely hydrolysed ethylene/vinyl acetate copolymers with phthalic and maleic anhydrides, and the conversion of the products to sodium salts.
Patent GB-1489626-A (GB)
Title: Cathodic protection circuits
IPC: C23F13/02
Filed: 1974-11-07
Abstract: 1489626 Cathodic protection circuit MATSUSHITA ELECTRIC INDUSTRIAL CO Ltd 7 Nov 1974 [12 Nov 1973 13 Nov 1973] 48111/74 Heading C7E A buried structure, e.g. a pipe, has a cathodic protection system comprising an anode buried in spaced relation from the structure and rectifying means electrically connecting the anode to the structure to allow flow of current only in the direction from the structure to the anode, the anode being of a material so much higher in the electromotive series than the structure and the rectifying means having such low forward resistance that the rectifying means will conduct a current continuously in response to the voltage difference set up between the anode and structure due to the galvanic cell set up by them in their buried state. The anode may be Mg; the rectifier may comprise a transistor whose (1) emitter and base or (2) collector and base are joined at a common terminal which is connected to the cathode, whilst the remaining terminal is connected to the anode; a Schotkky diode may also be used.
Patent GB-1201953-A (GB)
Title: 3-amino-rifamycins s and sv derivatives and process for their preparation
IPC: C07D498/08
Filed: 1967-10-24
Abstract: 1,201,953. 3-Amino-rifamycins S and SV. CIBA Ltd. 24 Oct., 1967 [25 Oct., 1966], No. 48303/67. Heading C2A. Novel 3-amino-rifamycin S and 3-amino rifamycin SV derivatives of formulµ respectively, and of their hydrogenated derivatives at least partially hydrogenated in positions 16, 17, 18, 19, 28 and 29, in which R represents the residue of a carbocyclic aromatic or heterocyclic aromatic compound, any substituent of which in the ortho position to the carbon atom linked with the -NH group is different from a free primary amino group, free OH or free SH group, and salts thereof including quaternary ammonium salts, are prepared by reacting rifamycin S or rifamycin O or a hydrogenated derivative thereof, with a primary amine of formula NH 2 -R, in which R has the above meaning. If desired, the resultant compound (A) if a hydroquinone may be oxidized to a quinone (i.e. a 3-aminorifamycin S); (B) if a quinone may be reduced to a hydroquinone (i.e. a 3-amino rifamycin SV); (C) may be hydrogenated or (D) may be converted to a salt. Oxidization (A) may be by means of hydrogen peroxide, ammonium persulphate or potassium ferricyanide. Reduction (B) may be by means of hydrosulphite, dithionite or ascorbic acid (preferred) or a salt thereof. Hydrogenation (C) is with catalytically activated hydrogen. R of the above general formulae may be phenyl, naphthyl, pyridyl, pyrimidinyl, pyridazinyl, imidazolyl, pyrazinyl, thiazolyl, oxazolyl, isoxazolyl, pyrazolyl or triazolyl. Preferred compounds are 3-anilino rifamycins S and SV and 3-[(4- pyridyl)-amino]-rifamycin SV. Salts are formed with alkali metals and with many inorganic are organic acids (specified). The picrates may be used for purifying the bases by converting the bases into salts isolating the salts and liberating the bases therefrom. A pharmaceutical composition for oral, topical or parenteral administration to humans and animals comprises a 3-amino-rifamycin S or 3-amino-rifamycin SV of Formulµ I or II and a carrier e.g. animal fodder.